2001 Saturn L100 Repair Question
Topics covered: Black smoke, Engine, Exhaust.
Mileage: 142,000 miles.
Mileage: 142,000 miles.
Asked on February 14, 2013
Saturn L100 Black smoke Problem
The code reader gives a P0171 (blank on Bay1) code and both the AC and rad fans switch on, the car is running very high on gas and a black smoke, all started after it was in the workshop and the mechanic welded the exhaust manifold (that had a small crack). Already changed the temperature gauge and the FCM and no change. Please advise where to start, Can it be a bad sensor causing the problem?
Asked by Tor_saturn_L100Answer
Replied on February 15, 2013
You have the 4cyl engine?The first thing I would do is check for a vacuum leak.